document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=634460>Question 634460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is the formula an = -4n(n-1) explicit or recursive? Find the first five terms of the sequence. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399612 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=399612\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It's explicit because you can find ANY term without having to know anything about the previous term (or terms).\r<BR>\n" );
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document.write( "First term:\r<BR>\n" );
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document.write( "an = -4n(n-1)\r<BR>\n" );
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document.write( "a1 = -4*1*(1-1)\r<BR>\n" );
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document.write( "a1 = -4*0\r<BR>\n" );
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document.write( "a1 = 0\r<BR>\n" );
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document.write( "Second term:\r<BR>\n" );
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document.write( "an = -4n(n-1)\r<BR>\n" );
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document.write( "a2 = -4*2*(2-1)\r<BR>\n" );
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document.write( "a1 = -8*1\r<BR>\n" );
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document.write( "a1 = -8\r<BR>\n" );
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document.write( "I'll let you finish. </SPAN>\n" );
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